/**
 * PostgresConnector — PostgreSQL database resource.
 * Not mountable (but supports snapshot sync to dump schema + sample data).
 * Custom operations: query, schema, execute.
 *
 * Requires `pg` as an optional peer dependency.
 */
import type { ConnectContext, ConnectorDeclaration, ConnectorFieldSpec, ConnectorHandle, ToolFace } from "@skaile/workspaces/connectors";
import { AbstractConnector } from "@skaile/workspaces/connectors";
/**
 * Connector for PostgreSQL databases — provides query, schema inspection, and execute operations.
 * Also supports snapshot sync that dumps schema and sample data to JSON files. Requires the `pg` optional peer dependency.
 * @docLink packages/factory-assets/concepts#postgres-connector
 */
export declare class PostgresConnector extends AbstractConnector {
    readonly name = "postgres";
    tools: ToolFace;
    constructor();
    describeFields(): ConnectorFieldSpec[];
    private _describeSkill;
    connect(declaration: ConnectorDeclaration, ctx: ConnectContext): Promise<ConnectorHandle>;
    disconnect(handle: ConnectorHandle): Promise<void>;
    private pool;
    private _read;
    private _list;
    private _search;
    private _describeOperations;
    private _executeOp;
    /** Parse the params argument shared by the query/execute ops (JSON string or passthrough). */
    private parseParams;
    private _opQuery;
    private _opSchema;
    private _opExecute;
}
/**
 * Creates a new PostgresConnector instance.
 * @returns Configured PostgresConnector ready to be registered in the connector registry.
 * @docLink packages/factory-assets/api-reference#postgres-connector-factory
 */
export declare function createConnector(): PostgresConnector;
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